Heddle mechanism for circular looms



.Dec. 27, 1949 v; M. 'J. ANCET HEDDLE MECHANISM FOR CIRCULAR LOQMS 5Sheets-Sheet 1 Filed Aug. 1, 1947 INVENTQR WC TOR M.J.' N CET BY mm. as.AGENTS Dec. 27, 1949 v. M. J. ANCET HEDDLE MECHANISM FOR CIRCULAR LOOMS5 Sheets-Sheet 2 Filed Aug. 1, 1947 Dec. 27, 1949 V M. J. ANCET HEDDLEMECHANISM FOR CIRCULARv LOOMS 5 Sheets-Sheet 3 Filed Aug. 1, 1947INVENTO R NCET +84.

VICTOR M. J.A

BY I"' AGENTS Patented Dec. 27, 1949 CIRCU AR L MS Victor Marie JosephAncet, Lyon, France, assignor to Regina S. A., Tangiers, MoroccoApplication Augpst 1, 1947, Serial No. 765,560

' F e'h e N hher 3 194 Section 1, Bublic Law 690, August 8, 1946 Patentex ires Novem er 30. 196.5

5 laimsinvention relates to heddle mechanism fer use in circular lcomsand is concerned more nin te n w h t e e heshl me heh sh te ein suchlooms, which is of simple epn'strucand in which the heddle wires aresup: rtegi ifordndpgahdrit' relative movement and he te n iii ieti ehsie e d- The new mechanism includes an annular suplltlfit gjunted"eoncehtrically with the loom shaft th erih e z e f' e ei ii ie t'i t p "tithe n ne e d er ie A l te herii es t t ut ht i m thee r .91- ii e therehteh in ea h h ie y e he ie iee 9h et e e t e e t h the seinlevel ater e1e- 'ts, sueh as reds or strips, extending through s' in hsi e e d h eh eiee i .s'b'r l k eh f r e hi: thei h t-- iiih eihe "Eachblade th u pe nd we openings near each end and is connected to the {tirae n si b elem ts in the P t g ,enings' and to the blade on the otherside by eei ehts in h l w Q h he e dle whee lie i'ne'ach space betweenadjacent blades and h eleens t their ends t i i gh h e P etlieelemntscrossing the space and connecting the blades at opposite sides'thereof.The slides in'the' two levels are moved radially by suitable ii-Em meansand a reed of annular form and in twcgr more sections is mounted on theannular sg'pport to overlie the slides.

For a better understanding of the invention referel t may be had to theaccompanying at ete i wh h Ftgf'l is a view partly in elevation andpartly I "'ti cal section of one form of heddle mechhim f the invention;

is a sectional view on the line 22 of Ij'jg. '1, with parts removed; and

Figs. 3 and 4 are fragmentary perspective views showing'two forms ofheddle wire mount: in s.

I'he loom, of which a part is shown in the drawings; includes a verticaldrive shaft In, which eitnds through the central opening of anannularsupport H carried by legs l2. The suphas'a peripheral flange Ha,on which are mounted a plurality of guide blocks l3 arranged at uniformspacings in a circular series. Each bloli isprovicied with a transversecurved rib I? on its under surface, which is receivable in acorresponding groove in the upper face of the ilenge l la of thesupport, and the blocks are held in pesition by bolts 65 passing throughopenings in flange t9 and into the blocks. Each bloel; Yftieeiii' al upe lower r d e hi ie were, in t eh t h eh ie hie hte t slide it h 1 5 a lde I etteehes t i other e end x: tending outwardly in prolengationthereoi.

eh ade e time? ehs w r' h ihee a each end eht eheh h e e s ehhe 9 t e deh ehe isle t erea e e e i el he e P s ng hr u h th upp r h'ehihje i thee blades th o the ad ehet er s e th h e t Pe e h eh h the lower 9 h sthe wo h t-tie t 'J-he e ments he h w 49 (Fieeeh e hieh' er e' rith ehintegral h hi ed hee i a the e the e removable cap 2! at the other end,or the elements he b flat st 2? e e t i 'ei metal heh strip having anenlarged head 23 at one end and e. p ing t i -g: eihhe t t t the end, Ifthe elements are of rod form, th openings ll} in the blades are circularwhereas, if strips are employed, the openings lt through the blades areelongated lengthwise of the blades, s9 that the strips lie with theirwide faces horizontal. By removal of the cap 2| from a rod l9, the rodmay be withdrawn from the openings the blades, in which it is mounted.Similarly, the locking member 24 on a strip 22 may be d e pressed, sothat the end of the strip carrying the member may be passed through theopenings in the b e ed I Th e me s exteh h re h e e between adjacentblades in either the upper or lower series are eonnected by heddle wires25, teh o ie he e 25 et eeh eh through which the rods l9"or strips 2 2may be passed; th t sua eye het e h i ehde- The heddle wires are looselystrung on the rods, so httt t e e e nd e dentl mo b n they ss me t e roper e eti h ei i h i e Qhe h i h of t e t et h were h ds 8 er i r hehtq'e he thr h h he shutt e P e b h e t re i m n of th eh eee e te n i ee el the e w ed tl hqvehie t i the e tree eh iih slid n e ether level.The radial movement of the slides i e eted by eem hieehe it i e th p o eeehi 29 he h m nt d h hei above he eh e ubv t t he m hav n e r et e 29%i hi e i i 9 O e h ends of t e slides n he er ievei- Qi 9 i i slides'inthe two levels are provided with racls te th 32 n ei mitt d e s end e hguid b eh t is rmed w th a eeht ei pening it bet een the hi e h s enseehte hi h when 34 mounted for free rotation and meshing with th teet t3. h the e h ti e s it ee- W th this arrangement, as the lgwer slide 16m d outwardly, for example, by the action of the cam on its roller, itsrack teeth cause rotation of pinion 34 and this, in turn results ininward movement of the corresponding upper slide I 6.

An annular member 35 is mounted on top of the series of guide blocks andprojects outwardly therefrom. The member 35 carries a reed 36 of annularform, the reed overlying the blades I] and lying parallel thereto. Thereed is preferably made in a plurality of sections and the member 35 isformed with a peripheral rim 35a having a slot in its outer face, inwhich the inner edge of the reed is received to be held in place by aplurality of set screws 31.

With the construction described, the heddle wires in each group carriedon a pair of elements spanning the space between adjacent blades arefreely movable relative to one another, since the portions of theelements lying between opposed faces of the blades are of uniform sizefrom end to end. There are thus no obstructions on the elements, whichwould interfere with the free movement of the wires as they adjustthemselves to their proper relative positions. Should a single wirebecome broken or defective and require replacement, the elements, onwhich the wire is mounted, need be removed from only one of the bladesin which they are supported. The wires may then be slipped off the freeends of the elements until the broken or defective Wire has beenremoved, such warp threads as are necessary being broken prior to theremoval of the wires. After the defective wire has been replaced and thewarp threads again passed through the eyes of their respective wires andtied up, the elements on which the group of wires are mounted may bequickly restored to their normal positions in their supporting blades.The replacement of a slide or a guide block is equally simple. The

mounting of the reed in the annular member resting on and secured to thelower series of guide blocks insures that the reed will be properlypositioned and held securely in place during loom operation.

What I claim is:

1. In a heddle mechanism for use in a circular loom, the combination oftwo circular series of slides, an annular support having horizontalradial guideways in which the slides are mounted for endwise movement,the guideways being arranged in two groups in upper and lower levels, ablade mounted at the outer end of each slide and extending outwardlytherefrom, each blade having upper and lower openings near each end,elements connecting adjacent blades only of the same group and extendingfreely through corresponding openings in said blades, each blade beingconnected at both ends to the adjacent blade at one side thereof byelements in the upper openings in said blades and to the adjacent bladeat the other side thereof by elements in the lower openings in saidblades, each element having means at each end for engaging the blades toprevent dislodgment of the element, the means at one end beingmanipulable to permit the element to pass through the openings, in whichit is mounted, a plurality of heddle wires in each space betweenadjacent blades, each wire having loops at its ends loosely encirclingthe ele- .ments connecting said blades, and cam means disposed centrallyrelative to the series of slides and operable on the slides toreciprocate them.

2. In a heddle mechanism for use in a circular loom, the combination oftwo circular series of slides, an annular support having horizontalradial guideways in which the slides are mounted for endwise movement,the guideways being arranged in two groups in upper and lower levels, ablade mounted at the outer end of each slide and extending outwardlytherefrom, each blade having upper and lower openings near each end,rods connecting adjacent blades only of the same group and extendingfreely through corresponding openings in said blades, each blade beingconnected at both ends to the adjacent blade at one side thereof by rodsin the upper openings in said blades and to the adjacent blade at theother side thereof by rods in the lower openings in said blades, eachrod having enlarged heads at its ends to prevent dislodgment of the rod,the head at one end being removable to permit the rod to be withdrawnfrom. the openings, in which it is mounted, a plurality of heddle wiresin each space between adjacent blades, each wire having loops at itsends loosely encircling the rods connecting said blades, and cam meansdisposed centrally relative to the series of slides and operable 0n thesides to reciprocate them.

3. In a heddle mechanism for use in a circular loom, the combination oftwo circular series of slides, an annular support having horizontalradial guideways in which the slides are mounted for endwise movement,the guideways being arranged in two groups in upper and lower levels, ablade mounted at the outer end of each slide and extending outwardytherefrom, each blade having upper and lower openings near each end,metal strips connecting adjacent blades only of the same group andextending freely through corresponding openings in said blades, eachblade being connected at both ends to the adjacent blade at one sidethereof by strips in the upper openings in said blades and to theadjacent blade at the other side thereof by strips in the lower openingsin said blades, each strip lying with its wide faces horizontal andhaving an enlarged head at one end and a stop at the other to preventdislodgment of the strip, the stop being manipulable to permit the endof the strip carrying the stop to pass through the openings, a pluralityof heddle wires in each space between adjacent blades, each wire havingloops at its ends loosely encircling the strips connecting said blades,and cam means disposed centrally relative to the series of slides andoperable on the slides to reciprocate them. I

4. In a heddle mechanism for use in a circular loom, the combination oftwo circular series of slides, an annular support having horizontalradial guideways in which the slides are mounted for endwise movement,the guideways being arranged in two groups in upper and lower levels, ablade mounted at the outer end of each slide and extending outwardlytherefrom, each blade having upper and lower openings near each end,elements connecting adjacent blades only of the same group and extendingfreely through corresponding openings in said blades, each blade beingconnected at both ends to the adjacent blade at one side thereof byelements in the upper openings in said blades and to the adjacent bladeat the other side thereof by elements in the lower openings in saidblades, each element having means at each end for engaging the blades toprevent dislodgment of the element, the means at one end beingmanipulable to' permit the element to pass through the openings, inwhich it is mounted, a plurality of heddle wires in each space betweenadjacent blades, each wire having loops at its ends loosely encirclingthe elements connecting said blades, cam means disposed centrallyrelative to the series of slides and operable on the slides toreciprocate them, and a reed of annular form mounted on the support tooverlie the blades on the slides.

5. In a heddle mechanism for use in a circular loom, the combination ofan annular support, a plurality of guide blocks mounted at uniformspacings on the support, each block having upper and lower radialguideways, a slide mounted for endwise movement in each guideway, ablade mounted at the outer end of each slide and extending outwardlytherefrom, each blade having upper and lower openings near each end,elements connecting adjacent blades of slides in the same level andextending freely through corresponding openings in said blades, eachblade being connected at both ends to the adjacent blade at one sidethereof by elements in the upper openings in said blades and to theadjacent blade at the other side thereof by elements in the loweropenings in said blades, each element having means at each end forengaging the blades to prevent dislodgment of the element, the means atone end being 6 manipulable to permit the element to pass through theopenings, in which it is mounted, a plurality of heddle wires in eachspace between adjacent blades, each wire having loops at its endsloosely encircling the elements connecting said blades, and cam meansdisposed centrally relative to the series of slides and operable on theslides to reciprocate them.

VICTOR MARIE JOSEPH ANCET.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,691,314 Toyoda Nov. 13, 19282,011,154 MacEwan Aug. 13, 1935 FOREIGN PATENTS Number Country Date374,562 Great Britain June 16, 1932 395,332 Great Britain Oct. 9, 1931

